redrawing detailed illustration

Posted 12.11.2014 @ 10.30AM

i used shutterstock images (below) to put together a draft design - unfortunately i couldn't find them in the same illustrative style. i'm happy to redraw them. i'm just wondering what is the best way of redrawing as i don't have a stylus. pencil/scan/image trace? or is that a waste of time. lightbox?